20653026 has 8 divisors (see below), whose sum is σ = 41306064. Its totient is φ = 6884340.

The previous prime is 20653007. The next prime is 20653063. The reversal of 20653026 is 62035602.

It is a sphenic number, since it is the product of 3 distinct primes.

20653026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20652987 and 20653005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721080 + ... + 1721091.

It is an arithmetic number, because the mean of its divisors is an integer number (5163258).

Almost surely, 2^20653026 is an apocalyptic number.

20653026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20653026 is a wasteful number, since it uses less digits than its factorization.

20653026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442176.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20653026 is about 4544.5600447128. The cubic root of 20653026 is about 274.3644873109.

Adding to 20653026 its reverse (62035602), we get a palindrome (82688628).

The spelling of 20653026 in words is "twenty million, six hundred fifty-three thousand, twenty-six".